[Fot] TR4 head milling

[Mordy Dunst]

Some years back Kas came over.  We studied heads.  I cut a stock head on a band saw at different places. Kinda looked at it deeply.  I mentioned that the only best way to get 14.5: 1 CR is to make the combustion chamber small and keep the thickness of the head stock. Utilizing flat top pistons.  ( he did not like pop ups).  
Easy to do once you weld up the combustion chamber and mill the chamber to a known volume. While at it make the intake runner better and sized right.  Need custom length longer valves too. 
Made three of these alum heads.  Alas the first one was unfortunately expendable - found out limits what we could grind.

Oh… they are seriously light. 



Good stuff.  


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On Saturday, April 6, 2024, 7:30 PM, GREGORY THOMPSON via Fot <fot at autox.team.net> wrote:

Has anyone had an issue with breaking into a water jacket on the TR4A head with taking off .150?
Thank you,
Greg Thompson _______________________________________________
fot at autox.team.net

http://www.fot-racing.com

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